Pros
High Leech
High Damage (After Stacking)
Decent Surviability and Clear Speed
Cons
Channeling in place can be boring. (IMO)
Updates
Initially posted December 6th 2020. Viable for 0.8.0.
Passives
RogueBladedancer
Skills
Acid FlaskShiftFlurrySmoke BombDecoy
Idols
The main affix on idols you want is damage per active shadow for shadow cascade and second is increased shadow damage.
Gear
Below is a Tunklab Gearplanner link that has been put together from the gear shown in the build video. This gear is not be min-maxed correctly but should give you a basic idea on how to get started.
Yeah, the 20% + 6% from Relentless would be 23% more attacks per second (& therefore more poison stacks for more damage & more resist shred) plus 20% more damage. More AoE is always nice though I’ve not tried that node to see what the increased area is like (if you wanted to take a few screenshots of the max range with & without Billowing Waves.
I went the sword route versus the daggers due to faster weapon speed. Stacking crit % for the hits and still adding in poison DoT. I’m nowhere near your level yet, so maybe try the switch and see what it looks like at max level.